Separate the product lines
Dedicated campaign sets gave Halloween and Christmas distinct budgets and targeting. Weekly search-term reviews helped manage efficiency as spend increased.
Case Study · Seasonal home decor
A Seasonal Plan. More Than Double the Sales.
Halloween and Christmas products were competing for the same budget. Amplify separated the demand windows, rebuilt seasonal content and planned investment around how shoppers actually bought.
Q4 2025 compared with Q4 2024
+107.3%
Q4 product sales
Product sales · common scale
21.27% → 19.27% blended ACoSSeparate campaigns. Planned demand windows.
Explore the results The Starting Point
Two Demand Peaks Needed Two Plans.
The premium home-decor business was concentrated in Halloween and Christmas. Q4 2024 product sales were $324,210 across 2,609 units, with 21.27% blended ACoS. There was no structured seasonal strategy, and the Halloween assortment had limited advertising visibility.
The Work
One Plan. Connected Execution.
Plan ahead of each peak
A Q4 demand forecast mapped search volume by product line. Bids increased progressively from Halloween through Black Friday and into Christmas.
Write for the buying occasion
Seasonal listing content and A+ upgrades addressed gifting and decorating intent, connecting the advertising message to the product page.
The Results
What Changed.
Q4 2025 compared with Q4 2024
+107.3%
Q4 product sales
$324,210 in 2024 → $672,225 in 2025.
+138.3%
Units sold
2,609 in Q4 2024 → 6,216 in Q4 2025.
19.27%
Blended ACoS
Down from 21.27% across the same Q4 comparison.
| Measure | Q4 2024 | Q4 2025 | Context |
|---|---|---|---|
| Product sales | $324,210 | $672,225 | +107.3% |
| Units sold | 2,609 | 6,216 | +138.3% |
| Blended advertising cost of sales (ACoS) | 21.27% | 19.27% | 2.00 percentage points lower |
| Advertising spend | Q4 2024 baseline | +90.8% | Q4 2025 versus Q4 2024 |
| Ad-attributed sales | — | $602,799 | +110.7% versus Q4 2024 |
| October ad-attributed sales | October 2024 baseline | +203% | October 2025 versus October 2024 |
| November ACoS | — | 17.83% | November 2025 |
The Takeaway
Give Each Season Room to Perform.
Early planning, product-line budgets and occasion-specific content helped the brand respond to two different demand peaks. Spend increased, but the reported advertising cost of sales improved over the same quarter-to-quarter comparison.
Measurement Notes
Unless otherwise labeled, results compare Q4 2025 with Q4 2024. Product sales and ad-attributed sales are distinct measures and are not added together. ACoS moved from 21.27% to 19.27%, a reduction of 2.00 percentage points; that is not a two-percent relative reduction. November's 17.83% ACoS is a single-month figure, not the blended Q4 result.
Source: Amplify eComm engagement reporting, summarized September 2026. Client identity withheld.
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